Mercurial > hg > nginx

annotate src/os/unix/ngx_linux_sendfile_chain.c @ 247:008276b9e061

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
nginx-0.0.1-2004-02-01-11:10:52 import
author Igor Sysoev <igor@sysoev.ru>
date Sun, 01 Feb 2004 08:10:52 +0000
parents 05592fd7a436
children b6793bc5034b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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1
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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2 #include <ngx_config.h>
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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3 #include <ngx_core.h>
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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4 #include <ngx_event.h>
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5
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6
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a65b630b3a66 nginx-0.0.1-2003-11-28-11:40:40 import
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7 /*
a65b630b3a66 nginx-0.0.1-2003-11-28-11:40:40 import
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8 * On Linux up to 2.4.21 sendfile() (syscall #187) works with 32-bit
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05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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9 * offsets only and the including <sys/sendfile.h> breaks the compiling if
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267ea1d98683 nginx-0.0.1-2003-11-30-23:03:18 import
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10 * off_t is 64 bit wide. So we use own sendfile() definition where offset
267ea1d98683 nginx-0.0.1-2003-11-30-23:03:18 import
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11 * parameter is int32_t and use sendfile() with the file parts below 2G.
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a65b630b3a66 nginx-0.0.1-2003-11-28-11:40:40 import
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12 *
a65b630b3a66 nginx-0.0.1-2003-11-28-11:40:40 import
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13 * Linux 2.4.21 has a new sendfile64() syscall #239.
a65b630b3a66 nginx-0.0.1-2003-11-28-11:40:40 import
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14 */
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15
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16
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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17 ngx_chain_t *ngx_linux_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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18 {
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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19 int rc;
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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20 char *prev;
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34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
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21 off_t fprev;
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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22 size_t size, fsize, sent;
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008276b9e061 nginx-0.0.1-2004-02-01-11:10:52 import
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23 ngx_int_t eintr;
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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24 struct iovec *iov;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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25 ngx_err_t err;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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26 ngx_hunk_t *file;
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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27 ngx_array_t header;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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28 ngx_event_t *wev;
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11fbd0fc041d nginx-0.0.1-2003-11-26-18:42:18 import
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29 ngx_chain_t *cl, *tail;
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34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
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30 #if (HAVE_SENDFILE64)
34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
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31 off_t offset;
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32 #else
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33 int32_t offset;
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34 #endif
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35
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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36 wev = c->write;
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37
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38 if (!wev->ready) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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39 return in;
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40 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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41
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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42 do {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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43 file = NULL;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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44 fsize = 0;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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45 eintr = 0;
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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46
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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47 ngx_init_array(header, c->pool, 10, sizeof(struct iovec),
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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parents: 97
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48 NGX_CHAIN_ERROR);
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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49
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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50 prev = NULL;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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51 iov = NULL;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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52
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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53 /* create the iovec and coalesce the neighbouring hunks */
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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54
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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55 for (cl = in; cl; cl = cl->next) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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56 if (ngx_hunk_special(cl->hunk)) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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57 continue;
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58 }
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59
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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60 if (!ngx_hunk_in_memory_only(cl->hunk)) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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61 break;
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62 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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63
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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64 if (prev == cl->hunk->pos) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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65 iov->iov_len += cl->hunk->last - cl->hunk->pos;
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66
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67 } else {
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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68 ngx_test_null(iov, ngx_push_array(&header), NGX_CHAIN_ERROR);
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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69 iov->iov_base = cl->hunk->pos;
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70 iov->iov_len = cl->hunk->last - cl->hunk->pos;
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71 }
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72
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73 prev = cl->hunk->last;
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74 }
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75
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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76 /* set TCP_CORK if there is a header before a file */
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77
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05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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78 if (!c->tcp_nopush == 0
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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79 && header.nelts != 0
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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80 && cl
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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81 && cl->hunk->type & NGX_HUNK_FILE)
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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82 {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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83 c->tcp_nopush = 1;
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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84
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05592fd7a436 nginx-0.0.1-2004-01-05-23:55:48 import
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85 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, "tcp_nopush");
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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86
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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87 if (ngx_tcp_nopush(c->fd) == NGX_ERROR) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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88 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_errno,
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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89 ngx_tcp_nopush_n " failed");
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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90 return NGX_CHAIN_ERROR;
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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91 }
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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92 }
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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93
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94 if (header.nelts == 0 && cl && cl->hunk->type & NGX_HUNK_FILE) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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95
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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96 /* get the file hunk */
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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98 file = cl->hunk;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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99 fsize = (size_t) (file->file_last - file->file_pos);
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34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
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100 fprev = file->file_last;
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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101 cl = cl->next;
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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102
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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103 /* coalesce the neighbouring file hunks */
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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104
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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105 while (cl && (cl->hunk->type & NGX_HUNK_FILE)) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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106 if (file->file->fd != cl->hunk->file->fd
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34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
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107 || fprev != cl->hunk->file_pos)
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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108 {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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109 break;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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110 }
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70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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111
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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112 fsize += (size_t) (cl->hunk->file_last - cl->hunk->file_pos);
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34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
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113 fprev = cl->hunk->file_last;
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8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
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114 cl = cl->next;
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115 }
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116 }
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
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117
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
118 /*
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
119 * the tail is the rest of the chain that exceeded
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
120 * a single sendfile() capability
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
121 */
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
122
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
123 tail = cl;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
124
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
125 if (fsize) {
198
34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
Igor Sysoev <igor@sysoev.ru>
parents: 196
diff changeset
126 #if (HAVE_SENDFILE64)
196
11fbd0fc041d nginx-0.0.1-2003-11-26-18:42:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
127 offset = file->file_pos;
198
34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
Igor Sysoev <igor@sysoev.ru>
parents: 196
diff changeset
128 #else
34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
Igor Sysoev <igor@sysoev.ru>
parents: 196
diff changeset
129 offset = (int32_t) file->file_pos;
34995c5ec6c4 nginx-0.0.1-2003-11-27-22:01:37 import
Igor Sysoev <igor@sysoev.ru>
parents: 196
diff changeset
130 #endif
196
11fbd0fc041d nginx-0.0.1-2003-11-26-18:42:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 195
diff changeset
131 rc = sendfile(c->fd, file->file->fd, &offset, fsize);
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
132
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
133 if (rc == -1) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
134 err = ngx_errno;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
135 if (err == NGX_EAGAIN) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
136 ngx_log_error(NGX_LOG_INFO, c->log, err,
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
137 "sendfile() EAGAIN");
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
138
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
139 } else if (err == NGX_EINTR) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
140 eintr = 1;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
141 ngx_log_error(NGX_LOG_INFO, c->log, err,
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
142 "sendfile() EINTR");
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
143
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
144 } else {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
145 ngx_log_error(NGX_LOG_CRIT, c->log, err,
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
146 "sendfile() failed");
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
147 return NGX_CHAIN_ERROR;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
148 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
149 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
150
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
151 sent = rc > 0 ? rc : 0;
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
152
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
153 #if (NGX_DEBUG_WRITE_CHAIN)
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
154 ngx_log_debug(c->log, "sendfile: %d, @" OFF_T_FMT " %d:%d" _
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
155 rc _ file->file_pos _ sent _ fsize);
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
156 #endif
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
157 } else {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
158 rc = writev(c->fd, header.elts, header.nelts);
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
159
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
160 if (rc == -1) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
161 err = ngx_errno;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
162 if (err == NGX_EAGAIN) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
163 ngx_log_error(NGX_LOG_INFO, c->log, err, "writev() EAGAIN");
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
164
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
165 } else if (err == NGX_EINTR) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
166 eintr = 1;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
167 ngx_log_error(NGX_LOG_INFO, c->log, err, "writev() EINTR");
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
168
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
169 } else {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
170 ngx_log_error(NGX_LOG_CRIT, c->log, err, "writev() failed");
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
171 return NGX_CHAIN_ERROR;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
172 }
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
173 }
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
174
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
175 sent = rc > 0 ? rc : 0;
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
176
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
177 #if (NGX_DEBUG_WRITE_CHAIN)
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
178 ngx_log_debug(c->log, "writev: %d" _ sent);
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
179 #endif
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
180 }
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
181
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
182 c->sent += sent;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
183
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
184 for (cl = in; cl; cl = cl->next) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
185
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
186 if (ngx_hunk_special(cl->hunk)) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
187 continue;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
188 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
189
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
190 if (sent == 0) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
191 break;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
192 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
193
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
194 size = ngx_hunk_size(cl->hunk);
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
196 if (sent >= size) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
197 sent -= size;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
198
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
199 if (cl->hunk->type & NGX_HUNK_IN_MEMORY) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
200 cl->hunk->pos = cl->hunk->last;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
201 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
202
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
203 if (cl->hunk->type & NGX_HUNK_FILE) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
204 cl->hunk->file_pos = cl->hunk->file_last;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
205 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
206
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
207 continue;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
208 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
209
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
210 if (cl->hunk->type & NGX_HUNK_IN_MEMORY) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
211 cl->hunk->pos += sent;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
212 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
213
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
214 if (cl->hunk->type & NGX_HUNK_FILE) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
215 cl->hunk->file_pos += sent;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
216 }
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
217
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
218 break;
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
219 }
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
220
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
221 in = cl;
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
222
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
223 /* "tail == in" means that a single sendfile() is complete */
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
224
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
225 } while ((tail && tail == in) || eintr);
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
226
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
227 if (in) {
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
228 wev->ready = 0;
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
229 }
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
230
195
8dee38ea9117 nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 97
diff changeset
231 return in;
97
70d2345a903f nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
232 }